Troubleshooting an Empty App Tab in Task Manager on Windows 10

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The 'App' tab in Task Manager (Taskwiz) has suddenly become empty, displaying the error message 'No Data Available.' This article provides step-by-step instructions to resolve this issue and restore functionality.

Symptoms

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* The 'Apps' or 'Processes' tabs are missing from Task Manager.

* Upon opening Task Manager, a blank window is displayed instead of processes running in the background.

Causes

1. Corrupted System Files: Missing or corrupted system files can cause issues with various Windows features, including Task Manager.

2. Incompatible Programs: Conflicting programs may be causing problems with Task Manager's functionality.

3. Registry Settings: Incorrect registry settings might prevent certain tabs from appearing in the Task Manager interface.

Resolution

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### Method 1 - Run System File Checker (SFC)

The SFC tool scans and repairs system files, which can resolve issues related to corrupted or missing file entries:

#### Step 1:

Press `Windows + R` keys at the same time on your keyboard.

Type 'cmd' in the text field that appears, then press Enter.

#### Step 2:

In Command Prompt (Cmd), type 'sfc /scannow' and hit Enter. The tool will now scan for any system file issues and repair them automatically if necessary.

### Method 2 - Check Registry Settings

Sometimes, incorrect registry settings can cause certain features to malfunction or not appear at all:

#### Step 1:

Press `Windows + R` keys on your keyboard.

Type 'regedit' in the text field that appears, then press Enter. This will open the Registry Editor.

#### Step 2:

In the left pane of Registry Editor (Regedt32), double-click on 'HKEY_CURRENT_USER' and navigate down through these subkeys until you reach 'Components' > 'Taskmgr'.

#### Step 3:

Right-click in an empty area within this key, then select 'New' from the context menu.

Choose either a DWORD (32-bit) or REG_SZ value depending upon your system architecture. If unsure about which one to choose based on your operating system version:

* For x86/x64: Choose 'DWORD' and name it as 'AlwaysShowAppCount'.

* For 64-bit systems only: Use the same steps above but instead create a new DWORD named 'Hidden' under HKEY_LOCAL_MACHINE\SOFTWARE\Policies \Microsoft\Windows\Taskbar.

#### Step

Double-click on either of these newly created registry entries (depending upon your operating system architecture) and set its value to '0' if it's currently enabled or vice versa. Then, restart your computer for changes to take effect.

### Method 3 - Uninstall/Reinstall .NET Framework

Some applications require the Microsoft .NET Framework to run properly:

1. Press `Windows + I` keys on your keyboard.

2. Click 'Apps & Features' from the left side bar in Settings (for Windows 10 Fall Creators Update or later).

3. Look for '.NET Framework' entries and select them all, then click Uninstall/Unpin/Purge button at top right corner of Apps & Features window.

4. After uninstallation process is complete restart your computer by clicking 'Restart' option when prompted during removal.

5 Once system boots back up again without any errors try opening Task Manager once more - hopefully this should resolve issue!

If none of these methods work, consider performing a clean installation of Windows 10 to completely reset all settings and files.

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